Here is a recommended program that has been helpful to me. I visit some websites that are really archives, large collections of articles, like John Piper's website or the Talkorigins Archive. Slowly over time I check out quite a few of these articles, but there are times when I am not connected to the internet but would still like to be able to read at my own leisure.
Well, there is a program that is free to download that I have used called HTTrack website copier. Go to this link and you can download it. I don't know everything about how to use a lot of its features, but I have downloaded a few collections and it is helpful for me to have. So just a recommendation. Perhaps the more computer savvy could point out something dangerous here, but I have enjoyed using it.